Method of laying waterproof roofing.



\ F. G. OVERBURY. METHOD OF LAYING WATERPROOF ROOFING.

APPLICATION FILED JAN. 3, 1912.

Patented July 7,1914.

' License.

FRE ERIGK o. OVEBZBU'QRYQOF NEW YORK, N. Y., ASSIGNOR 'ro rLIn'rK'oT 'MA'NUFA'C- TUBING COMPANY, "or RUTHERFORD, NEW JERSEY, A CORPORATION or NEW JERSEY.

METHOD 0'! L'AYING WA-IEBI'ROOF ROOFING.

Specification ofLette'rs fatent.

- Patented July 7, 1914.

To'all whom it may concern:

Be it known that I, FREDERICK C. OVER- BURY, a citizen of the United States, and resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Methods of Laying Waterproof Roofing, of which the following is a specication.

This inventionhas relation to waterproof and weatherproof roofing and to methods of laying the same.

Prepared weatherproof roofing, as a general rule, consists of sheets of felt or paper saturated with a waterproofing material such as asphalt, pitch or the like, and having a skin coat of harder asphalt or pitch or a mixture thereof. a In laying such a roofing, it highly desirable that there shall be no apertures formed therein in such way as to permit water to leak through to the supporting .boards or foundation. Where the strips of roofing are cut with serrated edges to produce a tile or shingle effect when laid, the problem of fastening the points or shingle ends is .a difficult one, not only because of the danger of rain leaking through the apertures made by the fastening nails but also because of the liability of the sheet to expand or contract laterally of its length.

The present invention provides a convenient method of laying the roofing material in such way that there are no through apertures, and yet each layer is fastened to the boards or foundation and to the adjacent layers.

On the drawings,Figure 1 illustrates a portion of a strip of'waterproof weatherproof flexibleroofing which in this case has a slotted edge to produce a shingle effect when laid. Fig. 2 represents a roof on which the roofing material is partially laid. Fig. 3 shows the same with the free edges of the strips fastened. Fig. 4 is a perspective view on a larger scale, showing the roofing when completely laid and fastened. Figs. 5, 6 and 7 represent cross sections through the roof and illustrate the several steps taken in laying the prepared roofing. Fig. 8 represents an enlarged section on the line 88 of Fig. 7. Fig. 9 shows a roof provided with plain and unserrated roofing material.- Fig. 10 represents a section on the line 16 10 of Fig. 9.

Briefly stated, the method of laying consists of the following steps, to wit,-laying the strips of roofing material so that each one overlaps at least two of those immediately below it, securing the upper edge of each strip by fastenings directly to the foundation, and then attaching the lowerledge of each strip by fastenings to the body'of the-strip next immediately below it without penetrating the third or lowermost strip. In this way, each strip is attached by nails "or like fastenings directly to the boards which constitute the foundation, and its fre edge n s ATESENT. Orion. v

is 'securedto the next adjacent strip by fastenings, between which and the foundation is an'unperforated portion of roofing material. -A certain flexibility is thus allowed the laid'roofing, and yet the latter is secured so securely in place that high winds, unless extremely violent, will not dislodge or injure it. Where the lower edge of the roofing is slotted or serrated, a. fastening may be :passed through each shingle 'or point as shown.

Proceeding to a detailed description of my method of laying a roofing, and assuming that the roofing'strip is slotted on one edge, as illustrated in Fig. 1, to produce a shingle effect when laid, I first nail or otherwise secure to the lower edge of the roof or side of a building a strip a of roofing material. This strip is laid with its unbroken edge downward and'nails-or other fasteners as at a are driven through it intothe foundation 1 the strips are -all laid, there will be two thicknesses or portions of strips below the lower edge of each strip, as shown in Figs. 2 and 5. These several strips are indicated at b 0 d e f. The upper edge of each of said strips, which is in contact with the foundation, is tacked or nailed thereto by nails or other fastenings indicated at Z) c 03, etc., leaving the lower edges of the several strips free. Then commencing with the upper strip (e for instance) the free edge of itand the one immediately below it (d) are lifted to receive a metal plate to constitute anvil, and through the lower edge or. the upper strip 6 and the body portion of the next lower strip d are passed rivets or other fasteners e to secure them together, after which the anvil is withdrawn. These fasteners, if the lower edge of the strip is ser- Thenrated, notched or slotted, are passed through the points or projections so that each is fastened down to the body of the strip below it. similarly fastenings are passed through the lower edge of the strip (1 and the body of strip 0, and through the lower edge of strip 0 and body of strip 6, until the lower edges of all the strips are secured. Through the edge of the strip 1; nails may be driven into the foundation, or the said edge may be fastened by rivets or other fastenings to the strip a.

From the foregoing description, taken in connection with the drawings, it will be seen that, although each strip is secured'directly to a foundation A, the fastenings which efiect this are. all covered by superimposed overlapping layers of the roofing strips, and that the portions of the strips which underlie the. exposed fastenings are imperforate, so that there can be no leakage of rain to the foundation. Any water, which leaks through the apertures in which the exposed fastenings are secured, flows down over the layer beneath such fastenings. The roof or side of the building is covered with three layers of roofing material throughout substantially its entire extent.

It is evident that the roofing stripsmay have their lower edges cut into any desired conformation to produce, when laid, an ornamental effect. After the strips have all been secured in place, the entire exposed surface of the roof may be covered with a layer of suitable weatherproof and waterproof paint of any desired color, which has the eflect of causing the adherence of the exposed overlapping layers and of filling the spaces between the exposed fastenings and the walls of the apertures through which they are passed.

Having thus explained the nature of my said invention and described a way of constructing' and using the same, although without attempting to set forth all of the forms in which it may be made or all of the modes of its use, what I claim is 1. The herein described method of laying elongated strips of waterproof and weatherproof flexible material upon a foundation, which consists in overlapping said strips in sequence, securing the upper edge of each strip directly to the foundation, and securing the free edge of each strip to the body of the next lower strip by fasteners which are located above an unperforated body portion of an underlying third strip.

2. A roof or siding comprising a foundation, a plurality of strips of prepared flexible weatherproof waterproof material arranged with each strip overlapping two adjacent lower strips, fasteners securing the upper edge of each strip directly to said foundation, fasteners passed through the lower edge of each strip and through the body of the next overlapped lower strip without penetrating the third overlapped strip. 0 I

3. A roof or siding comprising a foundation, a plurality of layers of waterproof material each having an edge formed with projections, said layers being arranged with each layerroverlapped by two superimposed layers and with each layer having at its exposed lower edge portion said projections, fastening securing the upper edge of each layer to the foundation, and fasteners located above the body of each lower layer and securing together the body and the projections of the lower edge portion respectively of the two superimposed layers, so that the projections of the exposed edge portion of each layer are secured by fasteners to the body portion of the layer im mediately beneath it with an unperforated portion of the lowest layer below the fastener.

In testimony whereof I have aflixed my signature, in presence of two witnesses.

FREDERICK C. OVERBURY.

Witnesses:

F. F. HOOKER, W. SGHAEFER; 

